CN201475263U - Novel transmission gear of heavy truck - Google Patents
Novel transmission gear of heavy truck Download PDFInfo
- Publication number
- CN201475263U CN201475263U CN2009202258667U CN200920225866U CN201475263U CN 201475263 U CN201475263 U CN 201475263U CN 2009202258667 U CN2009202258667 U CN 2009202258667U CN 200920225866 U CN200920225866 U CN 200920225866U CN 201475263 U CN201475263 U CN 201475263U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- location
- spline housing
- shaft
- input shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- General Details Of Gearings (AREA)
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a novel transmission gear of a heavy truck, which comprises an input shaft, a main shaft, a location splined hub of the main shaft, a slide bushing of the main shaft and a clamp spring, wherein the front end of the main shaft is extended into a hole arranged at the rear end of the input shaft to realize the axial location; the location splined hub of the main shaft is positioned between the main shaft and the input shaft, and is served as a transition part between the main shaft and the input shaft; the inner hole of the location splined hub of the main shaft is an unthreaded hole, and a certain gap is reserved between the shaft neck of the main shaft and the inner hole of the location splined hub of the main shaft to realize the floating of the main shaft; the slide bushing of the main shaft is sleeved on the main shaft, and the clamp spring is installed between the location splined hub of the main shaft and the input shaft to realize the rightward axial location of the location splined hub of the main shaft; and the crest values and the backlash values of the male spline of the location splined hub of the main shaft and the internal spline of the input shaft are different so as to realize the leftward axial location of the location splined hub of the main shaft. The utility model can realize the bidirectional axial locations of the main shaft, can bear shift axial force, and solves the axial location problem of the main shaft after the transmission gear of the heavy truck adopts the double bracing structural combination of a double counter shafts and a planetary gear train.
Description
Technical field
The utility model provides a kind of novel heavy duty truck gearbox.
Background technique
In the heavy type lorry transmission-gear box structure, the combination of main tank two-pack axle+odd-side planetary gear train is a kind of perfect scheme, and main tank two-pack axle construction is simple, and bearing capacity is strong; Odd-side planetary gear train compact structure, transmitting torque is big.Dual-gripper before and after the planetary gear train structure has effectively guaranteed the support stiffness of output shaft, has got rid of the influence of car load factor (for example transmission shaft imbalance) to gearbox inside proper functioning, the working life of obviously improving odd-side.
But dual-support structure before and after the odd-side planetary gear train adopts supports before it and is positioned at the mesochite rear wall, has taken in the traditional double countershaft gearbox rear-end of spindle in the Support Position of housing, and therefore, the main shaft axially locating just becomes a key and presses for the problem of solution.
Summary of the invention
At above-mentioned prior art, the utility model provides a kind of novel heavy duty truck gearbox, has solved the axially locating problem that adopts two-pack axle+planetary gear train dual-support structure combination back main shaft in the heavy gearbox.
The utility model is achieved through the following technical solutions:
A kind of novel heavy duty truck gearbox comprises input shaft, main shaft, main shaft location spline housing, main shaft sliding sleeve, jump ring, and wherein, front-end of spindle stretches into behind the input shaft in the stomidium, realizes axially locating; Main shaft location spline housing is between main shaft and input shaft, as the transition part between main shaft and input shaft; Main shaft location spline housing endoporus is a unthreaded hole, between main shaft axle journal and the main shaft location spline housing endoporus certain clearance is arranged, and floats to realize main shaft; The main shaft sliding sleeve is enclosed within on the main shaft, between main shaft location spline housing and the input shaft jump ring (for ease of the assembling of jump ring, remove two teeth on the main shaft sliding sleeve, vacate the fit up gap) is installed, and realizes main shaft location spline housing axially locating to the right; The top value of main shaft location spline housing external splines and input shaft internal spline is different with backlash values, to realize main shaft location spline housing axially locating left.
Described main shaft is connected with input shaft by round nut.When round nut is installed, can use lock washer, in use return pine to prevent round nut.
Spline housing endoporus two ends, described main shaft location dress wear-resistant gasket, wear-resistant gasket and main shaft location spline housing end face have a certain amount of gap, to prevent the main shaft excessive wear.In the big occasion of axial force, wear-resistant gasket can change thrust-bearing into.
Described novel heavy duty truck gearbox can replace main shaft location spline housing with roller bearing or Z-shaped wear-resistant sleeve; Can replace the spline shaft shoulder with back-up ring.
During use, the suffered gearshift power of main shaft is delivered on the spline housing of main shaft location, is delivered on the input shaft by main shaft location spline housing then, at last by the housing balance; And can realize the main shaft float function of two-pack shaft gearbox.
The utility model can be realized the bi-directional axial location of main shaft, can bear the gearshift axial force, and can realize main shaft float function in the traditional double countershaft gearbox, solved the axially locating problem that adopts two-pack axle+planetary gear train dual-support structure combination back main shaft in the heavy gearbox preferably.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A-A of main shaft sliding sleeve among Fig. 1 is to view.
Wherein, 1, input shaft; 2, main shaft location spline housing; 3, input shaft gear; 4, main shaft sliding sleeve; 5, mainshaft gear; 6, main shaft; 7, main shaft location jump ring; 8, input shaft gear jump ring; 9, wear-resistant gasket; 10, lock washer; 11, round nut; 12, jack shaft.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of novel heavy duty truck gearbox comprises input shaft 1, main shaft 6, main shaft location spline housing 2, main shaft sliding sleeve 4, jump ring 7, and as shown in Figure 1, wherein, main shaft 6 front ends stretch in the input shaft 1 back stomidium, realize axially locating; Main shaft location spline housing 2 is between main shaft 6 and input shaft 1, as the transition part of 1 of main shaft 6 and input shaft; Main shaft location spline housing 2 endoporus are unthreaded hole, between main shaft 6 axle journals and main shaft location spline housing 2 endoporus certain clearance are arranged, and float to realize main shaft 6; Main shaft sliding sleeve 4 is enclosed within on the main shaft 6, main shaft location jump ring 7 is installed between main shaft location spline housing 2 and the input shaft 1 and (removes two teeth on main shaft sliding sleeve 4, vacate the fit up gap, as shown in Figure 2, so that the assembling of main shaft location jump ring 7), realize main shaft location spline housing 2 axially locating to the right; The top value of main shaft location spline housing 2 external spliness and input shaft 1 internal spline is different with backlash values, to realize main shaft location spline housing 2 axially locating left; Input shaft gear 3 is positioned on the input shaft 1 by input shaft gear jump ring 8.
Described main shaft 6 is connected with input shaft 1 by round nut 11.When round nut 11 is installed, can use lock washer 10, in use return pine to prevent round nut 11.
Spline housing 2 endoporus two ends, described main shaft location dress wear-resistant gasket 9, wear-resistant gasket 9 has a certain amount of gap with main shaft location spline housing 2 end faces, to prevent main shaft 6 excessive wears.
During use, main shaft 6 suffered gearshift power are delivered on the spline housing 2 of main shaft location, are delivered on the input shaft 1 by main shaft location spline housing 2 then, at last by the housing balance; And can realize the main shaft float function of two-pack shaft gearbox.
Power is diverted to jack shaft 12 through input shaft gear 3 after input shaft 1 input, again by countershaft-gear through mainshaft gear 5 by main shaft sliding sleeve 4 with transmission of power to main shaft 6, realize power output.
Claims (4)
1. a novel heavy duty truck gearbox comprises input shaft, main shaft, it is characterized in that: also comprise main shaft location spline housing, main shaft sliding sleeve, jump ring, wherein, described front-end of spindle stretches into behind the input shaft in the stomidium, realizes axially locating; Main shaft location spline housing is between main shaft and input shaft, as the transition part between main shaft and input shaft; Main shaft location spline housing endoporus is a unthreaded hole, and is gapped between main shaft axle journal and the main shaft location spline housing endoporus, realizes that main shaft floats; The main shaft sliding sleeve is enclosed within on the main shaft, between main shaft location spline housing and the input shaft jump ring is installed, and realizes main shaft location spline housing axially locating to the right; The top value of main shaft location spline housing external splines and input shaft internal spline is different with backlash values, realizes main shaft location spline housing axially locating left.
2. a kind of novel heavy duty truck gearbox according to claim 1, it is characterized in that: described main shaft is connected with input shaft by round nut.
3. a kind of novel heavy duty truck gearbox according to claim 1 is characterized in that: described main shaft location spline housing endoporus two ends dress wear-resistant gasket or thrust-bearing, wear-resistant gasket or thrust-bearing and main shaft location spline housing end face are gapped.
4. according to each described a kind of novel heavy duty truck gearbox of claim 1～3, it is characterized in that: replace main shaft location spline housing with roller bearing or Z-shaped wear-resistant sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202258667U CN201475263U (en) | 2009-09-01 | 2009-09-01 | Novel transmission gear of heavy truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202258667U CN201475263U (en) | 2009-09-01 | 2009-09-01 | Novel transmission gear of heavy truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475263U true CN201475263U (en) | 2010-05-19 |
Family
ID=42411510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202258667U Expired - Lifetime CN201475263U (en) | 2009-09-01 | 2009-09-01 | Novel transmission gear of heavy truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475263U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401093A (en) * | 2011-11-11 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Dual-intermediate-shaft gearbox |
| CN102748455A (en) * | 2012-07-13 | 2012-10-24 | 中国重汽集团济南动力有限公司 | Axial positioning structure for main shaft of speed changing box with double intermediate shafts of primary box and planet wheel system of secondary box |
| CN102808930A (en) * | 2012-08-08 | 2012-12-05 | 中国重汽集团济南动力有限公司 | Floating mechanism for spindle of transmission with double intermediate shafts |
-
2009
- 2009-09-01 CN CN2009202258667U patent/CN201475263U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401093A (en) * | 2011-11-11 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Dual-intermediate-shaft gearbox |
| CN102748455A (en) * | 2012-07-13 | 2012-10-24 | 中国重汽集团济南动力有限公司 | Axial positioning structure for main shaft of speed changing box with double intermediate shafts of primary box and planet wheel system of secondary box |
| CN102808930A (en) * | 2012-08-08 | 2012-12-05 | 中国重汽集团济南动力有限公司 | Floating mechanism for spindle of transmission with double intermediate shafts |
| CN102808930B (en) * | 2012-08-08 | 2016-03-16 | 中国重汽集团济南动力有限公司 | Twin countershaft transmission main shaft relocation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |